SOLUTION: How do I express this as a polynomial? (x-2y)^4

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Question 895294: How do I express this as a polynomial? (x-2y)^4
Found 2 solutions by harpazo, mark_henrhiz:
Answer by harpazo(655) About Me  (Show Source):
You can put this solution on YOUR website!
You must multiply the binomial given 4 times itself.
I will set it up and you do can do the math.

(x-2y)^4 = (x - 2y)(x - 2y)(x - 2y)(x - 2y)
Multiply (x - 2y)(x - 2y)(x - 2y)(x - 2y) to find your polynomial.

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Answer by mark_henrhiz(40) About Me  (Show Source):
You can put this solution on YOUR website!
use Pascal's triangle and Binomial theorem to expand the binomial.

%28x-2y%29%5E4+=+x%5E4+-+8x%5E3y+-+12x%5E2y%5E2+-+8xy%5E3+-+16y%5E4